Sahih Bukhari
Sahih Bukhari Volume 001, Book 008, Hadith Number 423.
Hadith Section/Book: Sahih Bukhari Sahih Bukhari Book 08. Prayers (Salat)
Narated By 'Abdullah bin 'Abbas : The sun eclipsed and Allah's Apostle offered the eclipse prayer and said, "I have been shown the Hellfire (now) and I never saw a worse and horrible sight than the sight I have seen today."